Surface temperature, surface oxygen, water clarity, water chemistry and phytoplankton chlorophyll a data from Grasmere, 1968 to 2013 - Maberly, S.C.; Brierley, B.; Carter, H.T.; Clarke, M.A.; De Ville, M.M.; Fletcher, J.M.; James, J.B.; Keenan, P.; Kelly, J.L.; Mackay, E.B.; Parker, J.E.; Patel, M.; et al. (NERC Environmental Information Data Centre, 2017)